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Motorola Spectra A3 Manual Supplement page 10

Hdnheld control head fm two-way radio

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POWER
AMPLIFIER
PO85
UHF FUNCTIONAL
BLOCK
DIAGRAM
P5t?7
(COAXIAL
CABLE)
J0853
RF
350
BOARD
HI
IF
INTERNAL
CASTII
450
trZ
CERAV
'
FILTERS
IF
/DE-
SQUELC-
:
u30
zND
LCCA-
OS
C
I
LLA-3
(2ND vC3l
Ubv
PRESCA
=
tc
Ubv
I
- --J
COMMAND
BOARD
J5OOB
P5
00
J5OO A
IC
PROG
J5OOB
P
J5OOA
RIBBON
ACCESSOR
Y
CABLE
BUS
S
IGNAL.
h(
FILTER
C
u70c
AUDi
C
FILTER
:
u40c
REMOTE
MOUNT
I
NTER FACE
BOARD
CO
NNECTOR
rR-
-]
SORY,
I-E
I
P?
r
l.
-l
I
I
I
_-!
REMOTE
MOUNT
ACCESS
OR
Y
CONNECTOR
t-
I
J
l--
ron
43
MoDELS
co
AND
I\,IICROPHONE
I!
I
av
HANDHELD
coNr
BOTH DASH
AND
R5
I
coNFr
GURATTONS
MI
CROPHONE
CONNECTOR
J
ro4
UNI
T
A5/
A7
IREMOTE MOUNN
M
ODEL
CONTROL
UNIT
(DASH
MOUNT]
A5/47
MODEL
(COAXIAL
CABLE)
RX
FRONT
END
ACTIVE
MIX
(o5r 25)
J5t27l
I
Y y
P5t28
RX
(COAXIAL
CABLE)
P R
ES
ELECTOR
(COAXIAL
CABLE)
P964t
DR
I
VER
Q5850
4
POLE
XTAL
FILTER
Y350
(COAXIAL
CABLE)
VCO
FEED
BACK
D/A
IC
u
502
SERIAL
BUS
I
NTERFACE
u522
VACUUM
FLU
ORES
CENT
(8
CHARACTER)
u
to2
SERIAL
BUS
I
NTER
FACE
U4
HIGH
VOLTAGE
VF
DRIVER
u
tot
I
4r
ptosn
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I
CENT
DTER)
I
MICROPHONE

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